Split enable_alternative_service_with_different_host flag.

net/spdy/spdy_test_util_common.h

Index: net/spdy/spdy_test_util_common.h
diff --git a/net/spdy/spdy_test_util_common.h b/net/spdy/spdy_test_util_common.h
index e5f908f50f36b07fe09241a214a31b033c22a21b..9db0ff4c962563c5f9141214ed0d08fa1a697858 100644
--- a/net/spdy/spdy_test_util_common.h
+++ b/net/spdy/spdy_test_util_common.h
@@ -212,7 +212,7 @@ struct SpdySessionDependencies {
   size_t stream_max_recv_window_size;
   SpdySession::TimeFunc time_func;
   std::unique_ptr<ProxyDelegate> proxy_delegate;
-  bool enable_alternative_service_with_different_host;
+  bool enable_http2_alternative_service_with_different_host;
   NetLog* net_log;
 };